powerpc/fsl-cpm: Configure clock correctly for SCC
Some board setup functions call cpm1_clk_setup() or cmp2_clk_setup() to configure the clock source. If CPM_CLK_RTX has been used for the parameter mode, the clock has been configured only for TX but not for RX. With this patch CPM_CLK_RTX configures the clock for both directions correctly. Signed-off-by: Wolfgang Ocker <weo@reccoware.de> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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e8137341b1
Коммит
1cca2d2b99
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@ -486,9 +486,6 @@ int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode)
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return -EINVAL;
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}
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if (reg == &mpc8xx_immr->im_cpm.cp_sicr && mode == CPM_CLK_RX)
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shift += 3;
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for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
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if (clk_map[i][0] == target && clk_map[i][1] == clock) {
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bits = clk_map[i][2];
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@ -503,6 +500,17 @@ int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode)
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bits <<= shift;
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mask <<= shift;
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if (reg == &mpc8xx_immr->im_cpm.cp_sicr) {
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if (mode == CPM_CLK_RTX) {
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bits |= bits << 3;
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mask |= mask << 3;
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} else if (mode == CPM_CLK_RX) {
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bits <<= 3;
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mask <<= 3;
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}
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}
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out_be32(reg, (in_be32(reg) & ~mask) | bits);
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return 0;
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@ -244,9 +244,6 @@ int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
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return -EINVAL;
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}
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if (mode == CPM_CLK_RX)
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shift += 3;
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for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
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if (clk_map[i][0] == target && clk_map[i][1] == clock) {
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bits = clk_map[i][2];
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@ -259,6 +256,14 @@ int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
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bits <<= shift;
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mask <<= shift;
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if (mode == CPM_CLK_RTX) {
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bits |= bits << 3;
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mask |= mask << 3;
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} else if (mode == CPM_CLK_RX) {
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bits <<= 3;
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mask <<= 3;
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}
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out_be32(reg, (in_be32(reg) & ~mask) | bits);
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cpm2_unmap(im_cpmux);
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